电影改编自直木奖获奖作家重松清的同名小说,由《玻璃芦苇》的导演三岛有纪子执导。故事讲述了带着孩子的离婚男人信(浅野忠信饰)和第二任妻子奈苗(田中丽奈饰)及她此前所生的两个女儿过着平凡而幸福的生活。当奈苗怀孕后,奈苗的大女儿透露想见自己亲生父亲沢田(宫藤官九郎饰),可正是这位亲生父亲曾对奈苗家暴导致他们离婚,奈苗和信都极度反对,大女儿竭力反抗,这让信感到沮丧,甚至对奈苗的腹中胎儿也产生否定感。。7-year-old Bertil's parents are at work and Bertil are home alone and bored. He is the only child in the family since his sister Martha died of an illness. But everything changes when he meets little Nils Karlsson Pyssling and they become friends. Nisse who lives in the basement in a room he rents from the rat Tjofsan,wich is cruel.。